JPS63295125A - Running device for wire in head part of wire out electric discharge machine - Google Patents

Abstract

PURPOSE:To form a device in small size improving its workability, by extending a wire from a vertically held reel horizontally through a hollow roller and a pulley to be curved to the upper and the wire being directed to the bottom through a guide pipe via a tension device to be crossed and guided in a hollow roller part. CONSTITUTION:A device provides a turn table 7, vertically holding a wire reel 5, in the front left side and a hollow roller 11, horizontally guiding a wire 9, in the front central part. And the device provides a pulley 13 changing the direction to the upper of the wire 9 guided by the hollow roller 11 in the front right side, wire tension belt 15 giving tension to the wire 9 in the front upper part and a guide pipe 17 guiding the wire 9 to the bottom part penetrating through the inside of the hollow roller 11 in the front central part. When the wire 9 is mounted extending, the device, mounting the reel 5 to the turn table 7 and inserting the wire 9 into the wire tension belt 15 from a part A via the hollow roller 11 and the pulley 13, moves the wire 9 by the belt, when it is manually turned, to be advanced into the guide pipe 17 in a part B, and the wire, advancing to the bottom, comes out appearing from a bottom part wire guide 19.

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application This invention relates to a wire-cut electric discharge machine, and more particularly to an improvement of a wire running device in a head portion.

b. Prior Art The wire running direction with respect to the workpiece can be either from top to bottom or vice versa, and the present invention relates to a processing machine in which the wire runs from top to bottom. The wire of a wire-cut electrical discharge machine corresponds to the tool of a general machine tool.
The tension and traveling speed during the traveling are determined by the degree of machining M of the workpiece,
This has a large effect on machining speed. Therefore, sufficient consideration must be given to the wire running device.

For example, the wire traveling device in the head section of a wire-cut electric discharge machine is as follows. A wire supply reel is attached to one end of the horizontally installed head with the shaft horizontally in the front-rear direction, and the wire to be fed out from this reel is
The wire is guided through a guide roller to a wire tensioning device, where the wire is tensioned and bent downward by a guide roller provided at the other end of the head.
It is guided by an upper wire guide located at the bottom of the head.

C6 PJ problem to be solved by the invention As mentioned above, the wire running device in the head of a conventional wire-cut electrical discharge machine generally has an inverted running path, has a wide running range, and is difficult to install the wire. The problem was that it was time-consuming. This invention was made with attention to these points, and provides a wire running device with a head portion that narrows the running range by crossing the wire running routes, improves workability, and is made smaller overall. The purpose is to

Means for Solving the d1 Problem In order to achieve the above object, the wire running device of the present invention is provided with a turning table that holds the wire supply reel vertically on one side of the front face of the head, and a rotating table that vertically holds the wire supply reel. A hollow roller is provided in the section to guide the wire supplied from the wire supply reel, and a boob is provided on the other side in front of the head to change the running direction of the wire guided by the hollow roller toward the top of the head. A tensioning device is installed at the upper front of the head to apply tension to the wire A7 that has passed through this pulley, and a guide pipe that guides the wire that has passed through the tensioning device is installed at the center of the front of the head to connect the hollow roller to the above-mentioned hollow roller. The guide pipe is provided vertically through a hollow portion, and an upper wire A7 guide for guiding the wire is provided at the lower end of the guide pipe.

00 Operation With this structure, the wire unwound from the wire supply reel passes through the hollow roller and the bobber almost horizontally, is bent upward from here, passes through the tension device, and is directed downward. It passes through the guide vibrator, intersects at the inside and outside at the hollow opening, and comes out from the upper wire guide provided at the bottom of the guide pipe. When a wire is hung, the guide vibrator supplies the end of the wire to a tensioning device and guides the wire so that it exits from the tensioning device and comes out from the upper wire guide. It also serves as the center shaft of the hollow roller.

Embodiment Next, an embodiment of the present invention will be explained based on the drawings. Figs. 1, 2, and 3 are a front view, a left side view, and a bottom view of the embodiment of the present invention, respectively. The wire running device 1 of this head section is constructed as follows.

A turning table 7 that vertically holds a wire supply reel 5 is provided on the front left side of the head 3, and a wire 9 supplied from the wire supply reel 5 is provided at the front center of the head 3.
A hollow row 511 is provided to guide the horizontal direction.

A pulley 13 is provided on the front right side of the head 3 to change the running direction of the wire 9 guided by the hollow roller 11 to the upper front direction of the head 3. A wire tension belt 15 is provided as a tension device to apply tension to the wire. A guide vibe 17 for guiding the wire passing through the wire tension belt 15 to the lower part of the head 3 is installed in the center of the front of the head 3.
It is provided vertically through the inside of the hollow roller 11 described above. At the lower end of the guide pipe 17, there is provided an upper wire guide 19 for positioning the wire as well as a lower wire guide (not shown).

When wire is to be wired in this configuration, the wire supply reel 5 is mounted on the rotating table 7, and the wire 9 is passed through the hollow roller 11. The wire is inserted into the wire tension belt 15 from the A section of the head 3 through the pulley 13, etc., and when the wire tension belt 15 is manually turned, the wire is moved by the belt and enters the guide vibe 17 at the B section of the head 3. It advances downward and emerges from the upper wire guide 19.

0. Effects of the Invention As understood from the above explanation, this invention has the structure set forth in the claims, so the wire running range is narrowed, workability is improved, and the device is made smaller. A wire traveling device for a head portion of a wire-cut electrical discharge machine can be provided.

[Brief explanation of the drawing]

1, 2, and 3 are a front view, a left side view, and a bottom view of an embodiment of the present invention, respectively. Explanation of the symbols representing the main parts of the drawing 1...Y A7 traveling device

Claims (1)

[Claims] A rotating table for vertically holding the wire supply reel is provided on one side of the front surface of the head, a hollow roller for guiding the wire supplied from the wire supply reel is provided in the center of the front surface of the head, and A pulley is installed on the side to change the running direction of the wire guided by the hollow roller toward the upper front of the head, and a tension device is installed at the upper front of the head to apply tension to the wire passing through the pulley. A wire-cut electric discharge machining machine comprising: a guide pipe for guiding the wire passing through the tension device in the central part, vertically extending through the hollow part of the hollow roller; and an upper wire guide for guiding the wire at the lower end of the guide pipe. Wire running device in the head of the machine.